<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<style type="text/css">
			.warp {
				margin: 0 auto;
				width: 1226px;
				position: relative;
				/*相对定位*/
				height: 300px;
				
			}
			.box{
			    width: 500px;
				height: 300px;
				background-color: #0086B3;
				position: absolute; /*绝对定位*/
				top:0;
				left: 0;
			}
			.box:nth-child(2){
				background-color: #32B32B;
			}
			.box:nth-child(3){
				background-color: #9f56b3;
			}
		</style>
	</head>
	<body>
		<div class="warp">
			<div class="box"></div>
			<div class="box"></div>
			<div class="box"></div>
		</div>
	</body>
</html>
